On Vista picture was good, very smooth and on Win 7 it looks like old msdos game, very sharp image but this problem is only whem Iam in fullscreen mode. Drivers are newest, codecs are the same as on old Vista. I want it be same picture (smooth) as it was on Vista. Thanks for help.
I would suggest trying through windows media centre as the rendering tends to better in my experiences using DVB_t cards, than the default apps than the card makers provide.